Helper App

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Threading;
using System.Windows.Forms;

namespace mouse_clicker
{
    public partial class Form1 : Form
    {
        delegate void mouse();
        int ms;
        int savedx, savedy, errorx = 0, errory = 0;

        enum mef : uint
        {
            LEFTDOWN = 0x00000002,
            LEFTUP = 0x00000004,
            MIDDLEDOWN = 0x00000020,
            MIDDLEUP = 0x00000040,
            MOVE = 0x00000001,
            ABSOLUTE = 0x00008000,
            RIGHTDOWN = 0x00000008,
            RIGHTUP = 0x00000010,
            WHEEL = 0x00000800,
            XDOWN = 0x00000080,
            XUP = 0x00000100
        }

        public Form1()
        {
            InitializeComponent();
            timer_helper.Start();
        }

        #region mouse
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool GetCursorPos(out POINT lpPoint);

        [DllImport("user32.dll")]
        static extern short GetAsyncKeyState(System.Windows.Forms.Keys vKey);

        [DllImport("user32.dll")]
        static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData,
          int dwExtraInfo);

        [DllImport("user32.dll")]
        static extern bool SetCursorPos(int X, int Y);

        struct POINT
        {
            public int x;
            public int y;
        }

        void Middown()
        {
            mouse_event((uint)mef.LEFTDOWN, 0, 0, 0, 0);
        }
        void Midup()
        {
            mouse_event((uint)mef.LEFTUP, 0, 0, 0, 0);
        }

        void Mousedu()
        {
            Middown();
            Midup();
        }
        #endregion

        private void xToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void timer_helper_Tick(object sender, EventArgs e)
        {
            int x = GetAsyncKeyState(Keys.F8);
            if ((x == 1) || (x == Int16.MinValue))
            {
                ms = Convert.ToInt32(textBox1.Text);
                try
                {
                    timer_cooldown.Interval = ms;
                }
                catch (Exception)
                {
                    MessageBox.Show("Not Valid number, interval has been set to 2000ms.");
                    textBox1.Text = "2000";
                    timer_cooldown.Interval = 2000;
                }
                timer_cooldown.Start();
                pictureBox1.Image = Properties.Resources.green_light;
                POINT position;
                GetCursorPos(out position);
                savedx = position.x;
                savedy = position.y;
                label5.Text = savedx.ToString() + ", " + savedy.ToString();
            }
            x = GetAsyncKeyState(Keys.F9);
            if ((x == 1) || (x == Int16.MinValue))
            {
                timer_cooldown.Stop();
                pictureBox1.Image = Properties.Resources.css_images_red_light;
            }
            x = GetAsyncKeyState(Keys.F10);
            if ((x == 1) || (x == Int16.MinValue))
            {
                POINT position;
                GetCursorPos(out position);
                errorx = position.x;
                errory = position.y;
                label7.Text = errorx.ToString() + ", " + errory.ToString();
            }
        }

        private void timer_cooldown_Tick(object sender, EventArgs e)
        {
            SetCursorPos(savedx, savedy);
            Thread.Sleep(100);
            mouse ms = new mouse(Mousedu);
            ms();
            if (errorx != 0)
            {
                SetCursorPos(errorx, errory);
                Thread.Sleep(100);
                ms();
            }
        }
    }
}